high7.5
CVE-2017-16654
Symfony Directory Traversal
Impact
An issue was discovered in Symfony before 2.7.38, 2.8.31, 3.2.14, 3.3.13, 3.4-BETA5, and 4.0-BETA5. The Intl component includes various bundle readers that are used to read resource bundles from the local filesystem. The read() methods of these classes use a path and a locale to determine the language bundle to retrieve. The locale argument value is commonly retrieved from untrusted user input (like a URL parameter). An attacker can use this argument to navigate to arbitrary directories via the dot-dot-slash attack, aka Directory Traversal.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| composer | symfony/intl | >= 2.7.0, < 2.7.38 | 2.7.38 |
| composer | symfony/symfony | >= 2.7.0, < 2.7.38 | 2.7.38 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Sensiolabs | Symfony | from 2.7.0 through 2.7.37 from 3.2.0 through 3.2.13 from 3.3.0 through 3.3.12 from 3.8.0 through 3.8.30 |
| Debian | Debian Linux | Versions 8.0, 9.0 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/symfony/symfony/pull/24994
- https://lists.debian.org/debian-lts-announce/2019/03/msg00009.html
- https://symfony.com/blog/cve-2017-16654-intl-bundle-readers-breaking-out-of-paths
- https://www.debian.org/security/2018/dsa-4262
- https://github.com/advisories/GHSA-c49r-8gj6-768r
- https://nvd.nist.gov/vuln/detail/CVE-2017-16654
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/intl/CVE-2017-16654.yaml
- https://github.com/FriendsOfPHP/security-advisories/blob/master/symfony/symfony/CVE-2017-16654.yaml
- https://symfony.com/cve-2017-16654